lately we've been having a lot of spam bots on this site; we've been actively banning them and for a few days we disabled the signups for these forums; hoping to see them leave. Yesterday we re-enabled the signups again; resulting at a bunch of spam bots logging in to the site again.

We're actively looking for ways to prevent spam bots more, but until we install some new features to do that, we feel that we need to keep the signups closed.